Tooth decay (cavities) is the result of persistent acid erosion of the outer surface of tooth structure known as enamel. The mouth becomes acidic after consuming foods high in sugar and carbohydrates such as candy, soda, potato chips, bread, etc. It remains acidic until our saliva can make it neutral. The minerals of the enamel are drawn out by the acid and leave the tooth weak, this is termed demineralization. After repeated acid attacks and enough minerals are lost, the tooth becomes soft and a cavity is formed. This process can be avoided or controlled with the addition of fluoride in a daily routine of brushing, flossing, and rinsing.